After announcing his very surprising engagement in July 2013 to Victoria's Secret model Behati Prinsloo, Adam Levine has finally opened up about his ever-changing views on marriage. Levine appeared on "The Tonight Show With Jay Leno," and the seasoned host asked him about his new engagement.

"Famous last words, 'I'll never get married,'" Levine admitted laughing. "I still don't necessarily think you have to get married unless you meet someone that makes you want to marry them. And then you marry them and it's wonderful."

The Maroon 5 rocker seemed genuinely happy about the prospect of wedding his Namibian beauty, 24, grinning at the audience and flashing a few gleeful winks. Though the couple seems to be happier than ever, Levine admits they haven't set a date for their big day yet.

The 34-year-old rockstar's main focus right now is preparing for Halloween. After going as one of the Sons of Anarchy last year, Levine has plans for a more spook-tacular costume -- and Prinsloo is involved.

"We're going to do Eyes Wide Shut, kinda creepy masquerade thing," he revealed of Tom Cruise and Nicole Kidman's last film together. "It's gonna be really creepy and awesome."

And though the crooner is traditionally tight-lipped about his romantic life, he's more than happy to talk about his bromantic life will fellow Voice coach Blake Shelton. But he does object to one thing -- the term "bromance."

"It's such a strange term because it has romantic implications so no," he said. "No mance, just bro."

But when the audience boo'd his decision, Levine quickly responded, "OK fine, bromance!"